Caps replacement in A4000 PSU (Skynet)

[Turran]

Greetings,

Replaced the caps in my A4000 for a better 5v (only had 4.80v) and documented it in case someone else needs to do this as well.

All caps bought from microkit.se in Sweden (which in turn take them from Farnell). Could not find them all at Elfa so.. Could only buy atleast 5 of each, so the ones I needed two of, I got 10 of so that I have 5 full kits.

http://www.grandis.nu/images/Amiga_4...CAPS_ArtID.jpg

Before: http://www.grandis.nu/images/A4000_PSU_Caps_1.JPG

All removed: http://www.grandis.nu/images/A4000_PSU_Caps_2.JPG

All replaced: http://www.grandis.nu/images/A4000_PSU_Caps_3.JPG

New voltages. not too happy about 12v but 5v is excellent: http://www.grandis.nu/images/A4000_PSU_Caps_4.JPG

Map of the caps: http://www.grandis.nu/images/Amiga_4...KYNET_CAPS.jpg

Notes:
The new "0.22uF, 250v" caps is smaller then the original. No problem though since the legs can be bent to fit.
The new "0.68uF, 250v" is also slightly smaller, but there is an extra hole in the motherboard so it fits perfectly anyway.

Have fun =)

Edit: Here is the order in excel format. ArticleIDs are from Farnell.
http://www.grandis.nu/images/Amiga_4...wer_Supply.xls

[8bitbubsy]

I've also restored my Skynet A4000 PSU:
http://16-bits.org/i/a4000/a4000_psu_restored.jpg

Notice how I use small Nippon DC filter caps (same farad and max voltage rating) on the primary section, so that the air flow has better access to the ventilation holes.
I didn't bother with the grey "block" caps that you also changed, they rarely fail in my experience.

I also installed a much quieter fan, with equal or better air flow.